Almecillin

Almecillin

Clinical data
Other names	[(Allylthio)methyl]penicillin
ATC code	None
Identifiers
CAS Number	87-09-2
PubChem CID	71365
ChemSpider	64462
UNII	6246WH0S1O
ChEBI	CHEBI:51207
ChEMBL	ChEMBL2105909
CompTox Dashboard (EPA)	DTXSID50236034
Chemical and physical data
Formula	C13H16N2O4S2
Molar mass	328.40 g·mol−1
3D model (JSmol)	Interactive image
SMILES CC1(C)S[C@@H]2[C@H](NC(=O)CSCC=C)C(=O)N2[C@H]1C(=O)O
InChI InChI=1S/C13H18N2O4S2/c1-4-5-20-6-7(16)14-8-10(17)15-9(12(18)19)13(2,3)21-11(8)15/h4,8-9,11H,1,5-6H2,2-3H3,(H,14,16)(H,18,19)/t8-,9+,11-/m1/s1 Key:QULKGELYPOJSLP-WCABBAIRSA-N

Almecillin (INN), also known as penicillin O, is a penicillin that is similar in antibiotic action to penicillin G. It is obtained by isolation from Penicillium chrysogenum.